Does the free Siam Park bus run at night on a Friday and Saturday for the 8-12pm sessions?
Just to let you know of our experience at the night session. It still costs €37 even though you only have 4 hours. Although daytime temperatures are in the high twenties, we found it very chilly at night when you came out of the water. Unlike the website hype, the rings for the lazy river type ride did not light up. Be careful at the market area as the wooden boards get very wet and slippy (no sun at night to help dry them)......I fell and twisted my knee. All-in-all, we thought it disappointing and would not return at night.
Yes the buses do run at night (quite strange sitting upstairs on an open top bus at midnight). I actually preffered the night time visit to the day time, although i do find €37 euros a bit steep considering you have a shorter time.